1155244441 has 16 divisors (see below), whose sum is σ = 1314532800. Its totient is φ = 1006440768.

The previous prime is 1155244427. The next prime is 1155244463. The reversal of 1155244441 is 1444425511.

It is a cyclic number.

It is not a de Polignac number, because 1155244441 - 2¹¹ = 1155242393 is a prime.

It is a super-2 number, since 2×1155244441² = 2669179436922804962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155241441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57750 + ... + 75136.

It is an arithmetic number, because the mean of its divisors is an integer number (82158300).

Almost surely, 2^1155244441 is an apocalyptic number.

It is an amenable number.

1155244441 is a deficient number, since it is larger than the sum of its proper divisors (159288359).

1155244441 is a wasteful number, since it uses less digits than its factorization.

1155244441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688.

The product of its digits is 12800, while the sum is 31.

The square root of 1155244441 is about 33988.8870220841. The cubic root of 1155244441 is about 1049.2797603405.

Adding to 1155244441 its reverse (1444425511), we get a palindrome (2599669952).

The spelling of 1155244441 in words is "one billion, one hundred fifty-five million, two hundred forty-four thousand, four hundred forty-one".